Examples and tweaks

.gitignore

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+__pycache__/
+sphinx/_build/
+*.py[cod]
+*.swp
+dist/
+sdist/
+env/
+build/
+develop-eggs/
+eggs/
+*.egg-info/
+.installed.cfg
+*.egg
+*.deb
+*.dsc
+*.build
+*.changes
+*.orig.*
+testing/
+MANIFEST
+.idea
+pip-log.txt
+pip-delete-this-directory.txt
+library/test/scrollphat/
+library/debian/
+packaging/*tar.xz
+.DS_Store
+sphinx.virtualenv

examples/logo-what.py

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+#!/usr/bin/env python
+
+from PIL import Image
+import sys
+
+sys.path.insert(0, '../library/')
+
+from inky import what as inkywhat
+
+inkywhat.set_colour('yellow')
+
+print("""Inky wHAT: Logo
+
+Displays the Inky wHAT logo.
+
+""")
+
+if len(sys.argv) < 2:
+    print("""Usage: {} <colour>
+       Valid colours: red, yellow, black
+""".format(sys.argv[0]))
+    sys.exit(0)
+
+colour = sys.argv[1].lower()
+inkywhat.set_colour(colour)
+
+inkywhat.set_border(inkywhat.BLACK)
+
+if colour == 'black':
+    img = Image.open("InkyPhat-212x104-bw.png")
+else:
+    img = Image.open("InkyPhat-212x104.png")
+
+inkywhat.set_image(img)
+
+inkywhat.show()

examples/logo.py

@@ -0,0 +1,36 @@
+#!/usr/bin/env python
+
+from PIL import Image
+import sys
+
+sys.path.insert(0, '../library/')
+
+from inky import phat as inkyphat
+
+inkyphat.set_colour('yellow')
+
+print("""Inky pHAT: Logo
+
+Displays the Inky pHAT logo.
+
+""")
+
+if len(sys.argv) < 2:
+    print("""Usage: {} <colour>
+       Valid colours: red, yellow, black
+""".format(sys.argv[0]))
+    sys.exit(0)
+
+colour = sys.argv[1].lower()
+inkyphat.set_colour(colour)
+
+inkyphat.set_border(inkyphat.BLACK)
+
+if colour == 'black':
+    img = Image.open("InkyPhat-212x104-bw.png")
+else:
+    img = Image.open("InkyPhat-212x104.png")
+
+inkyphat.set_image(img)
+
+inkyphat.show()

examples/test.py

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+import sys
+
+sys.path.insert(0, '../library/')
+
+import inky
+
+phat = inky.Inky(resolution=(104,212), colour='red')
+
+phat.setup()
+
+for x in range(104):
+    for y in range(212):
+        phat.set_pixel(x, y, 1)
+
+phat.update()

library/inky/__init__.py

@@ -190,8 +190,8 @@ def update(self):
         if self.h_flip:
             region = numpy.flipud(region)
 
-        buf_a = numpy.packbits(numpy.where(region == RED, 1, 0)).tolist()
-        buf_b = numpy.packbits(numpy.where(region == BLACK, 0, 1)).tolist()
+        buf_a = numpy.packbits(numpy.where(region == BLACK, 0, 1)).tolist()
+        buf_b = numpy.packbits(numpy.where(region == RED, 1, 0)).tolist()
 
         self._update(buf_a, buf_b)
 

library/inky/phat.py

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+import inky
+
+__version__ = '0.0.1'
+
+_colour = None
+_flip_h = False
+_flip_v = True
+
+WIDTH = 212
+HEIGHT = 104
+
+WHITE = 0
+BLACK = 1
+RED = YELLOW = 2
+
+phat = None
+
+
+def setup():
+    global phat
+    if phat is not None:
+        return
+    phat = inky.Inky(
+        resolution=(HEIGHT, WIDTH),
+        colour=_colour,
+        h_flip=_flip_h,
+        v_flip=_flip_v)
+
+
+def set_colour(colour):
+    global _colour
+    _colour = colour
+
+
+def set_border(color):
+    pass
+
+
+def set_image(image):
+    """Copy an image to the Inky pHAT."""
+    setup()
+    # Two dimensional list
+    if isinstance(image, list):
+        w, h = len(image), len(image[0])
+        w = min(w, WIDTH)
+        h = min(h, HEIGHT)
+        for x in range(w):
+            for y in range(h):
+                pixel = image[x][y]
+                phat.set_pixel(y, x, pixel)
+        return
+
+    # PIL image
+    if getattr(image, 'size') and getattr(image, 'getpixel'):
+        w, h = image.size
+        w = min(w, WIDTH)
+        h = min(h, HEIGHT)
+        for x in range(w):
+            for y in range(h):
+                pixel = image.getpixel((x, y))
+                phat.set_pixel(y, x, pixel)
+        return
+
+
+def show():
+    """Show the image on the Inky pHAT."""
+    setup()
+    phat.setup()
+    phat.update()
+

library/inky/what.py

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+import inky
+
+__version__ = '0.0.1'
+
+_colour = None
+_flip_h = False
+_flip_v = False
+
+WIDTH = 400
+HEIGHT = 300
+
+WHITE = 0
+BLACK = 1
+RED = YELLOW = 2
+
+what = None
+
+
+def setup():
+    global what
+    if what is not None:
+        return
+    what = inky.Inky(
+        resolution=(WIDTH, HEIGHT),
+        colour=_colour,
+        h_flip=_flip_h,
+        v_flip=_flip_v)
+
+
+def set_colour(colour):
+    global _colour
+    _colour = colour
+
+
+def set_border(color):
+    pass
+
+
+def set_image(image):
+    """Copy an image to the Inky wHAT."""
+    setup()
+    # Two dimensional list
+    if isinstance(image, list):
+        w, h = len(image), len(image[0])
+        w = min(w, WIDTH)
+        h = min(h, HEIGHT)
+        for x in range(w):
+            for y in range(h):
+                pixel = image[x][y]
+                what.set_pixel(y, x, pixel)
+        return
+
+    # PIL image
+    if getattr(image, 'size') and getattr(image, 'getpixel'):
+        w, h = image.size
+        w = min(w, WIDTH)
+        h = min(h, HEIGHT)
+        for x in range(w):
+            for y in range(h):
+                pixel = image.getpixel((x, y))
+                what.set_pixel(x, y, pixel)
+        return
+
+
+def show():
+    """Show the image on the Inky wHAT."""
+    setup()
+    what.setup()
+    what.update()
+